One of the most effective ways to clean industrial gas emissions from dust is to filter them through a porous partition, in kind of which is the most often used a fabrics with different characteristics.
Filters which uses fabric as a flexible porous partition got the name “bag” due to the currently most common form of the frame in the form of a sleeve cylinder on which the fabric is stretched.
The main differences of fabric filters is in the method of regeneration, the design of filter elements (sleeves or cassettes), the number of sections in the filter, the modes of filtration and regeneration.
Bag filters are widely used in ferrous and nonferrous metallurgy, the chemical and petroleum industries, in the production of building materials and other industries.
The efficiency of dust collection in a bag filter depends on the dispersion of dust particles, the characteristics of the filter material, the method and mode of regeneration, the value of the specific gas and dust load, and the hydraulic resistance of the filter.